Commit 8bc3c481 authored by Matthew Wilcox (Oracle)'s avatar Matthew Wilcox (Oracle) Committed by Linus Torvalds
Browse files

mm: remove nrexceptional from inode 

We no longer track anything in nrexceptional, so remove it, saving 8 bytes
per inode.

Link: https://lkml.kernel.org/r/20201026151849.24232-5-willy@infradead.org


Signed-off-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: default avatarVishal Verma <vishal.l.verma@intel.com>
Acked-by: default avatarJohannes Weiner <hannes@cmpxchg.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 7f0e07fb

fs/inode.c

+1 −1
Original line number Diff line number Diff line
@@ -529,7 +529,7 @@ void clear_inode(struct inode *inode) 
	 */

	xa_lock_irq(&inode->i_data.i_pages);

	BUG_ON(inode->i_data.nrpages);

	BUG_ON(inode->i_data.nrexceptional);

	BUG_ON(!mapping_empty(&inode->i_data));

	xa_unlock_irq(&inode->i_data.i_pages);

	BUG_ON(!list_empty(&inode->i_data.private_list));

	BUG_ON(!(inode->i_state & I_FREEING));

include/linux/fs.h

+0 −2
Original line number Diff line number Diff line
@@ -442,7 +442,6 @@ int pagecache_write_end(struct file *, struct address_space *mapping, 
 * @i_mmap: Tree of private and shared mappings.

 * @i_mmap_rwsem: Protects @i_mmap and @i_mmap_writable.

 * @nrpages: Number of page entries, protected by the i_pages lock.

 * @nrexceptional: Shadow or DAX entries, protected by the i_pages lock.

 * @writeback_index: Writeback starts here.

 * @a_ops: Methods.

 * @flags: Error bits and flags (AS_*).
@@ -463,7 +462,6 @@ struct address_space { 
	struct rb_root_cached	i_mmap;

	struct rw_semaphore	i_mmap_rwsem;

	unsigned long		nrpages;

	unsigned long		nrexceptional;

	pgoff_t			writeback_index;

	const struct address_space_operations *a_ops;

	unsigned long		flags;